Side-thrust support for spring bed bottoms



June 8 1926. l1,587,569

s. wElssMAN Er AL SIDE THRusT SUPPORT FOR SPRING BED BoTToMs Filed Nov. i9. 192s D @Jgd (LQ) D Q6@ (m UML( i 2 'Uk/UU@ @mmm/ Patented June i925.

UNIT-El) STATES SAMUEL WEISSMAN AND RALPH WEISMAN, 0F DETROIT, MICHIGAN.

SIDE-THRUST SUPPORT FOR SPRING?A BEI) IBOTTOMS.

Application filed November 19, 1923. Serialy No.f675,600.

ln our Patent No. 1,415,068, granted May 9, 1922, there is disclosed a side thrust support for spring bed bottoms of that type en'iploying a plurality of longitudinal and transverse rows of springs secured to and supported at their lower ends on a frame structure that engages a bed and at their upper ends connected to each other and to side and end members of an upper frame so as to secure each spring against substantially lateral displacement, while permitting free vertical yield thereof. The side thrust support shown in our patent includes aA novel linkage adapted to prevent the sides of the top frame of a spring bed bottom from l'reing pulled inwardly when depressed, particularly by a weight central of the spring bed bottom.

This invention aims to simplify the linkage construction and provide a side thrust support which` will cause the sides of the upper-frame of the spring bed bottom to travel downwardly and outwardly, under pressure, in contradistinction to the side of au upper frame traveling in a vertical plane or inwardly from suoli plane. It is obvious that an outward movement of the sides of an upper frame will cause the webbing or upper supporting surface of the spring bed bottom to be stretched and drawn taut so that there will be greater' resistance to any pressure brought to bear centrally of the webbing or upper supporting surface of the spring bed bottom.

The improvements which we have inade will be hereinafter specifically described and then claimed, and reference will now be had to the drawing, wherein- Figure l is a diagrammatic plan of a spring bed bottom provided with side thrust supports in accordance with our invention;

Fig. 2 is an enlarged side elevation of a side thrust support showingl by dot and dash lines a depressed position of certain members of the support, and Fig. 3 is a plan of one of the side thrust supports.

The spring bed bottom comprises a lower frame l provided with transversely disposed spring supporting members 2 on which are mounted and suitably secured the lower convolutions of springs 3, said springs having the upper convolutions thereof suitably connected together by members 4f within an upper frame 5 which is held in spaced relation to the lower frame 1 by expansive force of the springs 3.

At each side `of the Spring bed bottom,

preferably intermediate the ends thereof, is

a side thrust support or unit, each including a longitudinal bar 6 having its ends suitably connected to or supported by adjacent yspring supporting members.

Connecting the baro to the side rail of* the lower frame l of thespring bed bottom is an inclined base piece 7 which has its upper outer end twisted` to overlie the lower frame l and be suitably secured thereto,

preferably cut or stamped from rigid sheet,

.metal and has its lower inner end providedl` with an upwardly and inwardly extending slotte-'l supportlng member 8, the slot 9 of said member being substantially parallel to the upper or lower edge of the base piece 7.v

Loosely articulated with the side of the upper frame 5 is the upper end 10` ofl an inclined supporting piece 1l, said piece being inclined downwardly and inwardly from the upper frame 5 so that the lower inner end of the supporting piece 11 may extend into and slide in the slot 9. For this purpose the lower inner end of the supporting piece ll may bc formed with a lug l2 which will ride on the lower wall of the slot 9 and by engagement with an end wall of said slot limit the movement of the inclined supporting piece 11.

Pivotally connected to an intermediate portion of the inclined supporting piece 11 is the upper end of a link 13 which has its lower end pivotally connected to the inclined base piece 7, contiguous to the outer end of said base piece, whereby said link will be normally inclined upwardly and inwardly relative to the base piece. The link 13 is offset so that it may articulate the supporting piece 11 and the base piece 7 and permit of the inclined supporting pieceV l1 being shifted when pressure is brought to bear on the upper frame 5 of thespring bed bottom.

In Fig. 2 of the drawing we have shown, by a dot and dash line the are in which the upper end l0 of the inclined supporting piece 11 swings when under pressure and while the upper end of this supporting piece travels downwardly and outwardly, the lower end of said supporting piece moves downwardly and inwardly as defined by the slot ofthe supporting member 8. With the upper' end of the supporting piece 1l swinging downwardly and outwardly, when under pressure, the side of the upper frame 5 is carried outwardly and consequently the webbing or supporting surface of the upper frame 5 is stretched or drawn taut to resist as much as possible any weight on the spring bed bottom. This is a distinct advantage over such spring bed bottoms having an upper frame with sides thereof shifting inwardly or just in a vertical plane when pressure is brought to bear on the upper frame, for we obtain a greater degree of tautness than otherwise possible with side thrust supports heretofore used.

Ve may provide the inclined supporting piece ll with an outstruck lug or protuberance 14 to engage the link 13 and define one position of the supporting piece relative to the link, and obviously the lug or protuberance may be part of the link to engage part of the inclined supportingr piece.

One embodiment of our invention has been illustrated but it is to be understood that the structural elements are susceptible to such changes as are permissible by the appended claims.

That we claim is l. An element for a side thrust support of a spring` bed bottom having an upper frame, a lower frame and linkage adapted to support the upper frame relative to the lower frameg-said element comprising an inclined base piece on the lower frame, and a slotted supporting member rigid relative to said base piece and disposed at an obtuse angle relative thereto and adapted to operatively support said linkage relative to said upper frame.

2. The combination with a spring bed bottom having an upper frame, a lower frame, supporting` members carried by the lower frame, and springs on said supporting members, of a side thrust unit at each longitudinal side of said spring bed bottom between the upper and lower frames thereof, each unit comprising a bar connecting sonic ot' said supporting members, an inclined base piece connecting said bar to a side rail ol" said lower frame, an inwardly projecting supporting member rigid at the inner cnd ot said base piece, said supporting member having a slot therein adjacent its upper edge, an outwardly and upwardly inclined supporting piece connected to the upper frame and having its lower inner end slidable in the slot ot said rigid supporting member, and a link. connecting said base piece to said supporting piece.

In testimony whereof we afiix our signatures.

SAMUEL WEISSMAN. RALPH WEISMAN. 

